DescriptionThis video provides step-by-step repair instructions for replacing the drive pulley on a Honda lawn mower. The most common reason for replacing the drive pulley is when the mower wheels don’t turn.
All of the information for this drive pulley replacement video is applicable to the following brands:
Honda
Tools needed: socket wrench, multi screwdriver, flathead bit, snap ring pliers, open-end wrench, hammer
Step-By-Step Instructions1
Before you begin the repair, make sure the mower’s engine has cooled remove the wire and boot from the spark plug. and turn the fuel valve off.
2
Now carefully set the mower on its side.
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Use a support to secure the blade or blades.
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Use a 14 millimeter socket to remove the bolts and washers and pull the blade or blades off.
5
Using a socket, apply a sharp strong motion to loosen the bolt securing the lower roto-stop assembly.
6
Remove the bolt and pull the lower assembly off.
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Use a flathead screwdriver to assist in detaching the roto-stop spring.
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Use pliers to release the clutch cable from the upper roto-stop assembly Now pull the upper assembly off.
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You will now need to remove the two debris shields by uninstalling the retaining screws.
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Be aware that to release the first debris shield you will need to adjust the rear wheels to the lowest setting to access one of the screws.
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Once the first shield is removed, uninstall the screws to release the second debris shield and set both shields aside.
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Now use an adjustable wrench to help rotate the transmission to release the belt and pull the belt off of the crankshaft drive pulley.
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Use pliers to disconnect the tension spring on the transmission.
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Now use a hammer and punch to knock-out the roll pin to detach the old pulley with the roll pin removed, slide the pulley off the transmission drive shaft. You’re now ready to install the new drive pulley.
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Slide the new pulley onto the drive shaft.
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Insert the roll pin and knock it into position with the hammer and punch.
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Thread the belt onto the new drive pulley and use a long flathead screwdriver to help reconnect the tension spring.
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Release the tension on the transmission and loop the belt onto the crankshaft drive pulley.
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Reinstall the second debris shield and secure the screws.
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Position the first debris shield and secure it with the screws.
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Readjust the rear wheels to their appropriate position.
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Reinstall the upper roto-stop assembly and reconnect the clutch cable.
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Use the screwdriver to reattach the roto-stop spring.
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Position the lower roto-stop assembly and secure it with the bolt.
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Align the high-lift blade with the mulching blade if applicable then position the blade or blades on the roto-stop and secure the bolts and washers.
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Torque the bolts to manufacturer specifications.
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Remove the support and carefully set the mower upright.
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Turn the fuel valve back on and reattach the spark plug wire and boot.